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NANOFIBERS FOR APPLICATIONS IN MEMS,

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BIOTECHNOLOGY AND MEDICINE. High tensile strength stronger than steel (on weight basis ) ... SEM image of electrospun PET fibers. Fiber diameters are in the ... – PowerPoint PPT presentation

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Title: NANOFIBERS FOR APPLICATIONS IN MEMS,


1
NANOFIBERS FOR APPLICATIONS IN MEMS,
NANOTECHNOLOGY, BIOTECHNOLOGY AND MEDICINE
   
2
  • High tensile strength stronger than steel (on
    weight basis )
  • High extensibility comparable to rubber
    (elasticity)

3
NANOFIBERS (Definition)
NANOFIBERS
4

Electrospinning of Polymers
30000 Volt
5
Electrospinning of nanofibers
30,000 Volt
6
(No Transcript)
7
SEM image of electrospun PET fibers. Fiber
diameters are in the range of 1.5 - 4 m
8
Electron micrograph of 300 nm polybenzimidazole
nanofibers
9
Woven polyester shirt fabric
10
Nanofibers have large surface area per gram
11
Research Goals Investigation of Nanofibers
Mechanical Properties Advanced process control
writing with fiber
12
Potential Uses of nanofibers
13
Protective Clothing
14
Solar Sail Comet
15
Solar sail freight arriving on Mars
16
Leaf with nanofiberscontaining pesticide
17
Nanofibers as a physical barrier to insects
18
Bridge with nanofibers (Dupont)
19
Fiber Optic - nanofibers
20
Braid of aligned nanofibers. Density?100nfs/?m2
Several aligned nanofibers
21
Super conductive nanofibers (Poly- acrylic acid
Salts)
Nanofiber after burnout
22
Conductive nanofibers (PEDOT/PEO)
Current-Voltage Response
23
Nanofiber nonwoven fabric
Soft-tissue biomedical applications
24
A microelectrode records the firing of
individual cells in a monkey's visual cortex
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